 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  ******************************************************************************/

 package org.eclipse.ui.internal.preferences;

 import java.io.File ;
 import java.io.IOException ;

 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.ui.IWorkingSetManager;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.internal.AbstractWorkingSetManager;
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPlugin;
 import org.eclipse.ui.internal.WorkingSetManager;

 /**
  * The WorkingSetSettingsTransfer is the settings transfer for the workbench
  * working sets.
  *
  * @since 3.3
  *
  */
 public class WorkingSetSettingsTransfer extends WorkbenchSettingsTransfer {

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.preferences.SettingsTransfer#getName()
      */
     public String getName() {
         return WorkbenchMessages.WorkingSets_Name;
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.ui.preferences.SettingsTransfer#transferSettings(org.eclipse.core.runtime.IPath)
      */
     public IStatus transferSettings(IPath newWorkspaceRoot) {
         IPath dataLocation = getNewWorkbenchStateLocation(newWorkspaceRoot);

         if (dataLocation == null)
             return noWorkingSettingsStatus();

         dataLocation = dataLocation
                 .append(WorkingSetManager.WORKING_SET_STATE_FILENAME);

         File stateFile = new File (dataLocation.toOSString());

         try {
             IWorkingSetManager manager = PlatformUI.getWorkbench()
                     .getWorkingSetManager();
             if (manager instanceof AbstractWorkingSetManager)
                 ((AbstractWorkingSetManager) manager).saveState(stateFile);
             else
                 return new Status(IStatus.ERROR, WorkbenchPlugin.PI_WORKBENCH,
                         WorkbenchMessages.WorkingSets_CannotSave);
         } catch (IOException e) {
             new Status(IStatus.ERROR, WorkbenchPlugin.PI_WORKBENCH,
                     WorkbenchMessages.ProblemSavingWorkingSetState_message, e);
         }
         return Status.OK_STATUS;

     }
 }

